kernel/drivers/iio/orientation, branch linux-5.1.y

iio/hid-sensors: Fix IIO_CHAN_INFO_RAW returning wrong values for signed numbers

2018-11-16T11:42:12Z

Before this commit sensor_hub_input_attr_get_raw_value() failed to take the signedness of 16 and 8 bit values into account, returning e.g. 65436 instead of -100 for the z-axis reading of an accelerometer. This commit adds a new is_signed parameter to the function and makes all callers pass the appropriate value for this. While at it, this commit also fixes up some neighboring lines where statements were needlessly split over 2 lines to improve readability. Signed-off-by: Hans de Goede Acked-by: Srinivas Pandruvada Acked-by: Benjamin Tissoires Cc: Signed-off-by: Jonathan Cameron

iio:orientation: drop assign iio_info.driver_module

2017-08-22T20:33:36Z

The equivalent of this is now done via macro magic when the relevant register call is made. The actual structure elements will shortly go away. Signed-off-by: Jonathan Cameron Reviewed-by: Lars-Peter Clausen

iio: orientation: hid-sensor-rotation: Drop unnecessary static

2017-07-17T20:45:01Z

Drop static on a local variable, when the variable is initialized before any possible use. Thus, the static has no benefit. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // @bad exists@ position p; identifier x; type T; @@ static T x@p; ... x = <+...x...+> @@ identifier x; expression e; type T; position p != bad.p; @@ -static T x@p; ... when != x when strict ?x = e; // Signed-off-by: Julia Lawall Signed-off-by: Jonathan Cameron

iio: hid-sensor-rotation: Add "scale" and "offset" properties parse support

2017-05-07T11:22:36Z

Add orientation sensor "scale" and "offset" parse support. These two properties are needed for exponent data conversion. Signed-off-by: Song Hongyan Reviewed-by: Andy Shevchenko Reviewed-by: Xu Even Acked-by: Srinivas Pandruvada Signed-off-by: Jonathan Cameron

iio: hid-sensor-rotation: Add geomagnetic orientation sensor hid support.

2017-05-07T11:22:33Z

Geomagnetic orientation(AM) sensor is one kind of orientation 6dof sensor. It gives the device rotation in respect to the earth center and the magnetic north. The sensor is implemented through use of an accelerometer and magnetometer do not use gyroscope. It is a standard HID sensor. More information can be found in: http://www.usb.org/developers/hidpage/HUTRR59_-_Usages_for_Wearables.pdf Geomagnetic orientation(AM) sensor and dev rotation sensor have same channel and share channel usage id. So the most of the code for relative orientation sensor can be reused. Signed-off-by: Song Hongyan Signed-off-by: Jonathan Cameron

iio: hid-sensor-rotation: Add relative orientation sensor hid support

2017-05-07T11:22:27Z

Relative orientation(AG) sensor is a 6dof orientation sensor, it depends on acceleration and gyroscope sensor data. It gives a quaternion describing the orientation of the device relative to an initial orientation. It is a standard HID sensor. More information can be found in: http://www.usb.org/developers/hidpage/HUTRR59_-_Usages_for_Wearables.pdf Relative orientation(AG) sensor and dev rotation sensor have same channels and share channel usage id. So the most of the code for relative orientation sensor can be reused. Signed-off-by: Song Hongyan Reviewed-by: Andy Shevchenko Reviewed-by: Xu Even Acked-by: Srinivas Pandruvada Signed-off-by: Jonathan Cameron

iio: orientation: hid-sensor-rotation: Add PM function (fix non working driver)

2016-11-05T17:47:47Z

This fix makes newer ISH hubs work. Previous ones worked by lucky coincidence. Rotation sensor function does not work due to miss PM function. Add common hid sensor iio pm function for rotation sensor. Further clarification from Srinivas: If CONFIG_PM is not defined, then this prevents this sensor to function. So above commit caused this. This sensor was supposed to be always on to trigger wake up in prior external hubs. But with the new ISH hub this is not the case. Signed-off-by: Song Hongyan Fixes: 2b89635e9a9e ("iio: hid_sensor_hub: Common PM functions") Cc: Signed-off-by: Jonathan Cameron

iio: orientation: hid-sensor-rotation: Fix memory leak in probe()

2015-05-17T08:10:25Z

'channels' is allocated via kmemdup and it is never freed in the subsequent error paths. Use 'indio_dev->channels' directly instead, so that we avoid such memory leak problem. Signed-off-by: Fabio Estevam Reviewed-by: Srinivas Pandruvada Signed-off-by: Jonathan Cameron

iio: orientation: hid-sensor-incl-3d: Fix memory leak in probe()

2015-05-17T08:10:14Z

iio: hid-sensor-rotation: Constify platform_device_id

2015-05-10T19:31:47Z

The platform_device_id is not modified by the driver and core uses it as const. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Jonathan Cameron